Bearing for cushioned rolls of drawing frames



March 29, 1949. E. R. COLLINS 2,465,634

BEARING FOR CUSHIONED ROLLS 0F DRAWING FRAMES Filed Sept. 27, 1947 14 1 1s oziz INV ENT OR.

EDWARD R.COL ms.

ATTORNEY.

Patented Mar. 29, 1949 UNITED-STATES PATENT OFFICE BEARING FOR CUSHIONED ROLLS OF DRAWING FRAMES 6 Claims.

My invention relates to the application of ball bearings to the top rolls of drawing frames, and is particularly concerned with an assembly of cushioned top roll, bearing and bearing sleeve or holder which can be quickly and readily taken down to facilitate replacement or refinishing of the cushioned top roll.

The advantage of ball bearings, as applied to drawing rolls, is well known in the spinning art, and effort has been exerted to adapt a ball bearing to the top rolls of drawing frames, as in Patent No. 2,237,004, dated April 1, 1941; but heretofore no successful arrangement has been devised by which the benefits of the ball bearing could be utilized and retain the advantage whereby a cushioned top roll can be readily removed from the bearing assembly and replaced or refinished.

An object of my invention is to provide a bearing for the top roll of drawing frames in which the ball bearing may be readily applied to the shaft of the top roll and readily taken down again by a simple withdrawing action by hand.

Another object of my invention is to provide a bearing for the top roll of drawing frames with sealed ball bearings and an oil seal ring to effectively seal the chamber.

Another object of my invention is to provide a bearing for the top roll of drawing frames in which sealed ball bearings are pressed into a bearing sleeve and the assembly is slipped onto the shaft of the top roll simply and easily by hand, and which may be easily and simply taken down by a simple withdrawing action by hand.

Another object of my invention is to provide a bearing for the top roll of drawing frames which makes maximum use of existing parts and requires a minimum of change to incorporate my improvement.

Another object of my invention is to provide a bearing for the cushioned top roll of drawing frames which will never require lubrication, requires less power, produces a smoother sliver resulting in a higher quality of product and lower general cost of maintenance.

Another object of my invention is to provide a bearing for the cushioned top roll of drawing frames which is simple and rugged in construction, efficient in operation and inexpensive to manufacture.

Further objects and advantages of my invention will be apparent from the following description taken in connection with the accompanying drawings in which like characters of reference designate corresponding parts in the several views, and wherein:

Fig. 1 shows a cushioned top roll.

Fig. 2 is a fragmentary view, partly in section, showing the shaft of the top roll inserted in a bearing according to my invention.

Fig. 3 is an enlarged view, partly in section, showing details of the bearing.

Referring more in detail to the drawing, a top roll H is shown formed of suitable cushioning material and mounted on shaft l2 which is turned down slightly to form spindles l3 at each end.

The top rolls have their shaft ends mounted in loose bearing sleeves l4 having their ends fiattened at [5 and flattened along the bottom surface as at It so that they may seat firmly and have vertical play without rotation in guides, not shown, that are provided in the frame.

Taking advantage of and making maximum use of existing parts, according to my invention, the shaft i2 is turned down from to i'e for approximately 1 4", leaving a fillet ll of .016". The housing or sleeve I4 is turned out to i? for approximately 1-3;", then to for approximately and then to for approximately A sealed for life ball bearing l8 of /8" outside diameter is pressed into the sleeve l4 and seated against the shoulder l9. Then a spacer 20, of outside diameter, formed of metal, cork or other suitable material, is pressed into the sleeve l4 and fixed against the bearing [8. Then another sealed for life ball bearing 2| of outside diameter is pressed into the sleeve l4 and seated against the spacer 20. Finally, an oil seal 22 of outside diameter is pressed into the sleeve [4 and fixed against the bearing 2| to offer more rigidity to the bearings and to keep lint and other foreign matter out of the housing. This completes the assembly shown in Fig. 3 of the drawings; and since all of the parts are assembled by pressing together with considerable force, the assembly is stable and may be handled without danger of any parts becoming dislodged.

The bearing assembly shown in Fig. 3 may be applied to the ends of the top roll shaft [2 by simply inserting the spindles l3 into the ball bearings l8, 2| with which they form a running fit, as shown in Fig. 2.

When the cushioned top roll becomes worn in use or needs replacing or refinishing for any reason, the top roll and the bearings can be lifted out of the frame, the bearing assemblies removed from the spindles by simply withdrawing by hand, and a new or refinished top roll inserted inplace.

Having thus fully described my invention, I claim:

1. In combination, a top roll for drawing frames, said roll having end spindles extending outwardly from said roll, each of said spindles being carried with a running fit in an antifriction bearing, a hollow sleeve surrounding said bearing and provided with a bore Within which said bearing is seated, a plurality of shoulders spaced longitudinally along said bore, said shoulders facing said roll, said bearing abutting one of said shoulders, and an oil seal abutting another of said shoulders.

2. In combination, a top roll for drawing frames, said roll having end spindles extending outwardly from said roll, each of said spindles being carried with a running fit in a plurality of anti-friction bearings, a hollow sleeve surrounding said bearings and provided with a bore within which said bearings are seated, a plurality of shoulders spaced longitudinally along said bore, said shoulders facing said roll, one of said bearings abutting one of said shoulders, and an oil seal abutting another of said shoulders.

3. In combination, a top roll for drawing frames, said roll having end spindles extending outwardly from said roll, each of said spindles being provided with a fillet and carried with a running fit in a plurality of anti-friction bearings, a hollow sleeve surrounding said bearings and provided with a bore within which said bearings are seated, a plurality of shoulders spaced longitudinally along said bore, one of said bearings abutting the innermost of said shoulders, and an oil seal abutting the outermost of said shoulders, said fillet abutting the outermost of said bearings.

4. A bearing assembly for a roll having end spindles extending outwardly from said roll, comprising a plurality of anti-friction bearings, a hollow sleeve surrounding said bearings and provided with a bore within which said bearings are seated, a plurality of shoulders facing in the same direction and spaced longitudinally along said bore, one of said bearings abutting the innermost of said shoulders, and an oil seal abutting the outermost of said shoulders, said bearings having a running fit with said spindles.

5. A bearing assembly for a roll having end spindles extending outwardly from said roll, comprising an anti-friction bearing, a hollow sleeve surrounding said bearing and provided with a bore Within which said bearing is seated, a shoulder within said bore, and an oil seal abutting said shoulder, said bearing having a running fit Within said spindles, said bore being permanently closed at one end and unrestricted at the other end for reception of said bearing and spindles.

69A bearing assembly for a roll having end spindles extending outwardly from said roll, com prising an anti-friction bearing, a hollow sleeve surrounding said bearing and provided with a bore within which said bearing is seated, said bearing having a running fit with said spindles, a shoulder within said bore against which said bearing is seated, said bore being closed at one end and unrestricted at the other end for reception of said bearing and spindles.

, EDWARD R. COLLINS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 628,522 Campbell -1 July 11, 1899 1,623,554 Remde Apr. 5, 1927 1,793,294 Vigne Feb. 17, 1931 2,098,436 Stahlecker Nov. 9, 1937 2,150,796 Brouwer et al Mar. 14, 1939 2,237,004 King Apr. 1, 1941 2,352,167 Campbell June 27, 1944 2,355,511 Cobb Aug. 8, 1944 2,377,855 Ambrosini June 12, 1945 2,417,239 Courtney Mar. 11, 1947 FOREIGN PATENTS Number Country Date 419,823 Great Britain Nov. 16, 1934 

